The ''suǒnà'' was first introduced into China in the early 16th century, and comes in a variety of sizes, with smaller ones being called ''hǎidí'' (海笛, lit. "ocean flute"). It is played using circular breathing to maintain a constant tone. The ''suǒnà'' was primarily used in military contexts in China, traditionally, but is today played either solo or in ensembles. | The ''suǒnà'' was first introduced into China in the early 16th century, and comes in a variety of sizes, with smaller ones being called ''hǎidí'' (海笛, lit. "ocean flute"). It is played using circular breathing to maintain a constant tone. The ''suǒnà'' was primarily used in military contexts in China, traditionally, but is today played either solo or in ensembles. |